[ncl-talk] shapefile woes

[Matt Flournoy]

Hi Kacie!!

Thanks for the suggestions. I tried gsn_add_shapefile_polygons, but got the
same error as when I used polylines. I'm not sure how to check the map
projections for the shapefiles, but I'll look into that.

Thanks!
Matt

On Thu, Jun 2, 2016 at 3:37 PM, Kacie Shourd <Kacie.Shourd at dri.edu> wrote:

> Hi Matty (<3),
>
>
>
> I’ve never plotted shapefiles in NCL before, so bear with me. Looking at
> your code, I would suggest you try using gsn_add_shapefile_polygons like
> you use gsn_add_shapefile_polylines. Similar to how you are attempting to
> add the road polylines, try to add the polygons in this way as well?? The
> map you are calling in the create_SD_map function you have defined doesn’t
> draw these as far as I can tell.
>
>
>
> Another thing to check would be that your map projections are matching
> between the shapefiles and the map you have called using NCL.
>
>
>
> Hopefully this helps, or someone else can guide you further.
>
>
>
> Best,
>
> Kacie
>
>
>
> ---
>
> Kacie N. Shourd
>
> 드림
>
>
>
> Graduate Research Assistant
>
> Desert Research Institute
>
> Kacie.Shourd at dri.edu
>
> Work: (775) 674-7049
>
>
>
>
>
>
>
> *From:* ncl-talk-bounces at ucar.edu [mailto:ncl-talk-bounces at ucar.edu] *On
> Behalf Of *Matt Flournoy
> *Sent:* Thursday, June 02, 2016 12:59 PM
> *To:* ncl-talk at ucar.edu
> *Subject:* [ncl-talk] shapefile woes
>
>
>
> Hi all,
>
>
>
> I'm trying to plot a simple map of a few counties and roads in South
> Dakota using NCL 6.3.0. To do this, I've downloaded USA county shapefiles
> (from "http://www.gadm.org/country") and SD road network shapefiles (from
> "http://download.geofabrik.de/north-america.html"). Then, I use
> gsn_add_shapefile_polylines to add the USA counties to an existing map in
> my code, but I get this error message:
>
>
>
> (0) Error: gsn_add_shapefile_polylines: Can't open shapefile
> '/home/matt.flournoy/PECAN/overview/July06/new_shp/USA_adm_shp/USA_adm2.shp'
>
> (0)       No shapefile information will be added.
>
>
>
> I get the same error if I try inputing the road network shapefile, except
> that the directory in the first error message is the directory where the
> road network shapefile is. The map is plotted when I run the code, but the
> shapefile information is not on them.
>
> Does anyone know what may be causing this issue? I've attached the code
> that I'm using, which is very similar to the NCL example online about
> reading in USA county shapefiles from the same site as above.
>
> Thank you,
>
> Matt
>
>
>
> --
>
> Matthew Flournoy
>
> M.S. Meteorology Student, University of Oklahoma
>
> B.S. Meteorology, Penn State University
>
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>



-- 
Matthew Flournoy
M.S. Meteorology Student, University of Oklahoma
B.S. Meteorology, Penn State University
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